Stew, postage of the seat (which came today btw) was about $105 USD. When I bought my previous seat direct from Mustang, postage was $300 USD.
All up, the seat cost $655.82 AUD landed. The damn dollar has improved more since then.
As I said, it came today. Good condition. Easy install except you have to remove a bracket from the stock seat and transfer it to the Mustang. When installing, Kawasaki had crossed the threads on a bolt which made it awkward to get off. New bolts on the Mustang, so it wasn't an issue after that. Fitted very easily. May get up early in the morning if the weather is good and go for a ride b4 work. Will take pictures tomorrow and post them.
Stew, you have the same seat I think. We could do a swap over sometime if you like. You too Harry.
Take care
Ed